Mortar additive HPMC

Hydroxypropylmethylcellulose (HPMC) inowanzo shandiswa dhaka yekuwedzera muindasitiri yekuvaka. Iyo yakagadziridzwa cellulose ether inotorwa kubva kune zvakasikwa mapolymers, kunyanya cellulose. Inowanikwa muhupfu, HPMC inoparadzirwa nyore nyore mumvura kuti iite colloidal solution.

Kana yawedzerwa kune dhaka kana simende-yakavakirwa musanganiswa, HPMC ine akati wandei anobatsira zvivakwa:

Kuchengetedzwa kwemvura: HPMC inoshanda sechinhu chekuchengetedza mvura, ichibvumira dhaka kuti richengetedze kushanda kwayo kwenguva yakareba. Izvi zvinonyanya kukosha munzvimbo dzinopisa uye dzakaoma uko kukurumidza kubuda kwehunyoro kunogona kuita kuti dhaka riome nguva isati yakwana.

Kuvandudzwa Kwekushanda: Nekuwedzera kuwirirana uye purasitiki yedhaka, HPMC inosimudzira kushanda kwayo, zvichiita kuti zvive nyore kusanganisa, kuparadzira uye kushandisa. Izvi zvinovandudza huwandu hwekubata maitiro edhaka.

Enhanced Adhesion: HPMC inovandudza kunamatira pakati pedhaka uye akasiyana substrates akadai sekongiri, zvidhinha uye mataira. Izvi zvinosimudzira hukama huri nani uye zvinoderedza njodzi ye delamination kana kupatsanurwa.

Yakaderedzwa Sag: HPMC inobatsira kudzivirira dhaka kubva pakudonha kana kudonha kana yaiswa panzvimbo yakatwasuka, kuve nechokwadi chekuvharika kuri nani uye kuderedza kudiwa kwekushandazve.

Yakawedzerwa Nguva Yakavhurika: Kuwedzerwa kweHPMC kunowedzera iyo yakavhurika nguva yedhaka, nekudaro ichiwedzera hwindo renguva umo dhaka rinoramba richishanda uye rakabatana. Izvi zvinonyanya kubatsira kumapurojekiti makuru kana akaomarara anoda nguva yakawanda yekushandisa.

Yakavandudzwa Kusimba: HPMC inowedzera kusimba kwese kwedhaka nekudzikisa shrinkage, kuputika uye kupera kwemvura. Inosimudzira kubatana uye kutendeseka kwedhaka, zvichiita kuti chigadzirwa chekupedzisira chive chakasimba uye chakasimba.

Huwandu chaihwo hweHPMC hunodiwa mukuumbwa kwedhaka hunogona kusiyana zvichienderana nezvinhu zvakaita sezvivakwa zvinodiwa, mamiriro ekunze uye rudzi rwedhaka rinoshandiswa. Zvinokurudzirwa kutevedzera nhungamiro yemugadziri uye tekinoroji data sheets kune chaiyo dosage uye mirairo yekushandisa.

Pakazere, HPMC ndeye yakawanda inoshanda yekuwedzera iyo inosimudzira kuita kwedhaka uye simende-yakavakirwa musanganiswa, inovandudza kushanda, kunamatira uye kusimba.